Combined thermistor

Abstract

The utility model provides a combined thermistor, which relates to the technical field of thermistors, and comprises two first shells, the two first shells are connected through a connecting device, a push rod is pushed towards the direction of a limiting assembly, and the push rod drives a first movable block to move, so that a sliding chute slides along a sliding block, and the first movable block can slide along the sliding chute. The first movable block can extrude the limiting assembly during movement, the limiting assembly drives the limiting assembly to move downwards under the action of pressure applied by the first movable block, when the first movable block and the limiting assembly are clamped, the limiting assembly loses the pressure applied by the first movable block, and therefore the limiting assembly returns to the initial position; the thermosensitive resistors are combined through the mechanisms, the probability that due to the fact that welding points are affected by environmental factors such as temperature and humidity, aging and failure possibly occur after long-time use is reduced, and the probability that the welding quality is unstable is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of thermistors, in particular to a combined thermistor. Background Art

[0002] A thermistor is a temperature-sensitive semiconductor resistor whose resistance value changes significantly with changes in temperature. Thermistors are usually made of semiconductor materials, such as a mixture of manganese, nickel, and cobalt oxides. They exhibit negative or positive temperature coefficient characteristics. The resistance value of thermistors changes with changes in temperature, which makes them key components for temperature detection and control. Thermistors have good stability and can maintain stable performance in different temperature ranges. Because the resistance value of thermistors is very sensitive to temperature changes, they can respond quickly to temperature changes.

[0003] Currently, thermistors are typically housed in metal casings. To improve the measurement accuracy of thermistors, two or more thermistors are combined. Existing combined thermistors are typically combined using a soldering iron method. By precisely controlling the temperature of the soldering iron tip and the soldering time, the size and shape of the soldering point can be ensured to meet design requirements, thereby achieving precise soldering of the thermistor. However, during the soldering process of existing combined thermistors using the soldering iron method, the soldering points are affected by environmental factors such as temperature and humidity. Consequently, after long-term use, these soldering points may age and fail, and this may lead to unstable soldering quality.

[0004] Therefore, it is necessary to provide a new combined thermistor to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a combined thermistor.

[0006] The utility model provides a combined thermistor comprising two first shells, wherein the two first shells are connected by a connecting device;

[0007] The cam is fixedly mounted on the first supporting plate, and the cam is secured on both sides of the cam face with a retaining member that is fixed to the first supporting plate, the cam being secured on both sides of the cam face with a retaining member that is fixed to the first supporting plate.

[0008] Preferably, the limiting assembly includes a second placement frame, the bottom wall of the second placement frame is fixedly connected to a spring base, the top of the spring base is fixedly connected to a compression spring, the compression spring is fixedly connected to a second movable block at one end away from the spring base, the top of the second movable block is fixedly connected to a vertical rod, a through hole is opened at the top of the second placement frame, and the through hole opened at the top of the second placement frame is movably connected to the vertical rod.

[0009] Preferably, one side of the first placement frame and the second placement frame are respectively fixedly connected to one side opposite to the two first shells.

[0010] Preferably, both of the first shells are provided with a seating groove, and buffer springs are fixedly connected to both sides of the inner wall of the seating groove, and a pad is fixedly connected to the end of the buffer spring away from the seating groove, and the end of the pad away from the buffer spring is movably connected to the thermistor body, and the top of the thermistor body is movably connected to a fixed plate.

[0011] Preferably, a pin is provided at one end of the thermistor body, a fixing clip is movably connected to the top of the pin, and the pin is movably connected to the inner wall of a through hole opened on one side of the first shell.

[0012] Preferably, the first shell is movably connected to the second shell, and one end of the first shell and the second shell are both movably connected to a cover plate.

[0013] Compared with the related art, the combined thermistor provided by the present invention has the following beneficial effects:

[0014] The utility model provides a combined thermistor. During specific implementation, the first placement frame and the facing ends of the limit assembly are first aligned, and then the push rod is pushed in the direction of the limit assembly. The push rod drives the first movable block to move, so that the slide groove slides along the slider. The first movable block squeezes the limit assembly during movement, and the limit assembly drives the limit assembly downward under the pressure applied by the first movable block. When the first movable block and the limit assembly are engaged, the limit assembly loses the pressure applied by the first movable block, so the limit assembly returns to its initial position. By combining the thermistor through the above mechanism, the probability of aging, failure and other problems that may occur after long-term use due to the influence of environmental factors such as temperature and humidity on the welding point is reduced, and the probability of unstable welding quality is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a combined thermistor provided by the utility model;

[0016] Figure 2 for Figure 1 The schematic diagram of the local structure shown;

[0017] Figure 3 for Figure 2 The schematic diagram of the cutaway structure shown;

[0018] Figure 4 for Figure 3 A schematic diagram of the partial structure of the connecting device shown;

[0019] Figure 5 for Figure 4 Schematic diagram of the cross-section structure of the connecting device shown.

[0020] Numbers in the figure: 1. first shell; 2. mounting groove; 3. second shell; 4. cover plate; 5. buffer spring; 6. pad; 7. fixing clip; 8. pin; 9. first mounting frame; 10. telescopic spring; 11. first movable block; 12. fixing block; 13. push rod; 14. second mounting frame; 15. compression spring; 16. second movable block; 17. vertical pole; 18. sliding hole; 19. slider; 20. spring base; 21. sliding groove; 22. fixing groove; 23. telescopic rod; 24. thermistor body; 25. fixing plate. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0022] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 as well as Figure 5 ,in, Figure 1 A schematic structural diagram of a combined thermistor provided by the utility model; Figure 2 for Figure 1 The schematic diagram of the local structure shown;

[0023] Figure 3 for Figure 2 The schematic diagram of the cutaway structure shown; Figure 4 for Figure 3 A schematic diagram of the partial structure of the connecting device shown; Figure 5 for Figure 4 Schematic diagram of the cross-section structure of the connecting device shown.

[0024] In the specific implementation process, Figures 1 to 5As shown, the two first shells 1 are connected by a connecting device, which includes a first placement frame 9 and a limit assembly. The inner wall of the first placement frame 9 is fixedly connected to a telescopic rod 23, and the outer surface of the telescopic rod 23 is sleeved with a telescopic spring 10, and the telescopic end of the telescopic rod 23 is fixedly connected to a first movable block 11, one end of the telescopic spring 10 is fixedly connected to the inner wall of the first placement frame 9, and the end of the telescopic spring 10 away from the inner wall of the first placement frame 9 is fixedly connected to one end of the first movable block 11, a slide groove 21 is provided at the bottom of the first movable block 11, and a slider 19 is slidably connected to the inner wall of the slide groove 21. The bottom of the slider 19 is fixedly connected to a fixed block 12, and both sides of the fixed block 12 are fixedly connected to the inner wall of the first placement frame 9. A fixing groove 22 is provided at the top of the first movable block 11 , the inner wall of the fixing groove 22 is fixedly connected with a push rod 13, and the push rod 13 is movably connected to the inner wall of the sliding hole 18 opened at the top of the first placement frame 9. The limit components are respectively fixedly connected to one side of the first shell 1, and the limit components include a second placement frame 14, and the bottom wall of the second placement frame 14 is fixedly connected to a spring base 20. The top of the spring base 20 is fixedly connected to a compression spring 15. The compression spring 15 is fixedly connected to the second movable block 16 at one end away from the spring base 20. The top of the second movable block 16 is fixedly connected to a vertical rod 17. A through hole is opened at the top of the second placement frame 14, and the through hole opened at the top of the second placement frame 14 is movably connected to the vertical rod 17. One side of the first placement frame 9 and the second placement frame 14 are respectively fixedly connected to the opposite side of the two first shells 1, and the two second placement frames are fixedly connected to the opposite side of the first shells 1. A housing 1 is provided with a placement groove 2, and both sides of the inner wall of the placement groove 2 are fixedly connected to a buffer spring 5, and the end of the buffer spring 5 away from the placement groove 2 is fixedly connected to a pad 6, and the end of the pad 6 away from the buffer spring 5 is movably connected to the thermistor body 24, and the top of the thermistor body 24 is movably connected to a fixed plate 25. A pin 8 is provided at one end of the thermistor body 24, and a fixing clip 7 is movably connected to the top of the pin 8. The pin 8 is movably connected to the inner wall of the through hole opened on one side of the first housing 1, and the second housing 3 is movably connected to the first housing 1. One end of the first housing 1 is movably connected to the second housing 3. The first housing 1 and the second housing 3 are both movably connected to the cover 4. When it is necessary to combine the two thermistors, first align the first placement frame 9 and the second placement frame 14 facing each other, and then The push rod 13 is pushed in the direction of the second placement frame 14, and the push rod 13 drives the first movable block 11 to move, so that the slide groove 21 slides along the slider 19, and the second movable block 16 is squeezed by the first movable block 11 during movement. The compression spring 15 drives the second movable block 16 to move downward under the pressure applied by the first movable block 11. When the first movable block 11 and the second movable block 16 are engaged, the compression spring 15 loses the pressure applied by the first movable block 11, so the compression spring 15 returns to its initial position. When the two thermistors need to be disassembled, the vertical rod 17 is lifted up, and the second movable block 16 is separated from the first movable block 11 under the action of the compression spring 15, and the first movable block 11 returns to its original position under the action of the telescopic spring 10.

[0025] The working principle provided by the utility model is as follows: when it is necessary to combine the two thermistors, the first placement frame 9 and the second placement frame 14 are aligned at one end facing each other, and then the push rod 13 is pushed in the direction of the second placement frame 14. The push rod 13 drives the first movable block 11 to move, so that the slide groove 21 slides along the slider 19, and the second movable block 16 is squeezed by the first movable block 11 during movement. The compression spring 15 drives the second movable block 16 to move downward under the pressure applied by the first movable block 11. When the first movable block 11 and the second movable block 16 are engaged, the compression spring 15 loses the pressure applied by the first movable block 11, so the compression spring 15 returns to its initial position. When it is necessary to disassemble the two thermistors, the vertical rod 17 is lifted up, and the second movable block 16 is separated from the first movable block 11 under the action of the compression spring 15, and the first movable block 11 returns to its original position under the action of the telescopic spring 10.

[0026] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0027] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A combined thermistor, characterized in that: It comprises two first shells (1), wherein the two first shells (1) are connected via a connecting device; The connecting device comprises a first placement frame (9) and a limiting assembly, wherein the inner wall of the first placement frame (9) is fixedly connected to a telescopic rod (23), the outer surface of the telescopic rod (23) is sleeved with a telescopic spring (10), and the telescopic end of the telescopic rod (23) is fixedly connected to a first movable block (11), one end of the telescopic spring (10) is fixedly connected to the inner wall of the first placement frame (9), and the end of the telescopic spring (10) away from the inner wall of the first placement frame (9) is fixedly connected to one end of the first movable block (11), and the bottom of the first movable block (11) is provided with a A slide groove (21) is provided, the inner wall of the slide groove (21) is slidably connected to a slider (19), the bottom of the slider (19) is fixedly connected to a fixed block (12), the fixed block (12) is fixedly connected to the inner wall of the first placement frame (9), a fixed groove (22) is provided on the top of the first movable block (11), the inner wall of the fixed groove (22) is fixedly connected to a push rod (13), the push rod (13) is movably connected to the inner wall of a sliding hole (18) provided on the top of the first placement frame (9), and the limiting components are respectively fixedly connected to one side of the first shell (1).

2. The combined thermistor according to claim 1, characterized in that: The limiting assembly comprises a second placement frame (14), the bottom wall of the second placement frame (14) is fixedly connected to a spring base (20), the top of the spring base (20) is fixedly connected to a compression spring (15), the end of the compression spring (15) away from the spring base (20) is fixedly connected to a second movable block (16), the top of the second movable block (16) is fixedly connected to a vertical rod (17), a through hole is opened at the top of the second placement frame (14), and the through hole opened at the top of the second placement frame (14) is movably connected to the vertical rod (17).

3. The combined thermistor according to claim 2, characterized in that: One side of the first placement frame (9) and the second placement frame (14) are respectively fixedly connected to the opposite side of the two first shells (1).

4. The combined thermistor according to claim 3, characterized in that: Both of the first shells (1) are provided with a placement groove (2), and buffer springs (5) are fixedly connected to both sides of the inner wall of the placement groove (2), and the end of the buffer spring (5) away from the placement groove (2) is fixedly connected to a pad (6), and the end of the pad (6) away from the buffer spring (5) is movably connected to a thermistor body (24), and the top of the thermistor body (24) is movably connected to a fixed plate (25).

5. The combined thermistor according to claim 4, characterized in that: A pin (8) is provided at one end of the thermistor body (24), a fixing clip (7) is movably connected to the top of the pin (8), and the pin (8) is movably connected to the inner wall of a through hole opened on one side of the first shell (1).

6. The combined thermistor according to claim 5, characterized in that: The first shell (1) is movably connected to the second shell (3), and one end of each of the first shell (1) and the second shell (3) is movably connected to a cover plate (4).

Images